Richard Bourke 9th Mac William Iochtar
Ricard Búrca
Arms of Bourke of Mayo[1]
Died	1509

Ricard Bourke, 9th Mac William Íochtar (English: /bɜːrk/; BURK; died in 1509) was an Irish chieftain and noble who was lord of Lower (North) Connacht, Ireland.

Ricard was the son of Walter mac Thomas de Búrca (Walter Bourke), 3rd Mac William Íochtar (d.1440). He succeeded his brother, Theobald Bourke, 8th Mac William Íochtar (d.1503) as chieftain in 1503. Ricard was succeeded by Edmond de Búrca, 10th Mac William Íochtar (d.1514), the son of Ricard's cousin, Ricard Ó Cuairsge Bourke, 7th Mac William Íochtar (d.1479).^[2]

From the Annals of the Four Masters:

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• House of Burgh, an Anglo-Norman and Hiberno-Norman dynasty founded in 1193

• Burke, Bernard (1884). The General Armory of England, Scotland, Ireland, and Wales; comprising a registry of armorial bearings from the earliest to the present time. University of California Libraries. London: Harrison & Sons.
• Knox, Hubert T. (1908). The History of the County of Mayo to the close of the sixteenth century. Dublin: Hodges, Figgis and Company. p. 395.
• Moody, T. W.; Martin, F. X.; Byrne, F. J., eds. (1989). A New History of Ireland: IX: Maps, Genealogies, Lists, A Companion to Irish History, Part II. Oxford: Oxford University Press. ISBN 978-0-19-959306-4.
  • Lower Mac William and Viscounts of Mayo, 1332-1649, pp. 235–36.
• Annala Rioghachta Eireann: Annals of the kingdom of Ireland by the Four Masters, from the earliest period to the year 1616. Edited from MSS in the Library of the Royal Irish Academy and of Trinity College Dublin with a translation and copious notes. Vol. 5. Translated by O'Donovan, John (1st ed.). 2016 [1851]. Retrieved 11 March 2019.

• Annals of the Four Masters